Melkov Dmitrii
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date June 9, 2025 (latest changes June 9, 2025).
76 place (483.22).
how we calculated rating score
max_coefficients = (4.60 * 0.86 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.19266
p1 = (379.31 * 3.75 * 0.14 + 177.57 * 4 * 0.29 + 962.96 * 2.30 * 0.43 + 333.33 * 3.05 * 0.71 + 826.09 * 2.10 * 0.71 + 579.44 * 4.60 * 0.86 + 677.97 * 3.25 * 1 + 171.43 * 1.90 * 1) / (3.75 * 0.14 + 4 * 0.29 + 2.30 * 0.43 + 3.05 * 0.71 + 2.10 * 0.71 + 4.60 * 0.86 + 3.25 * 1 + 1.90 * 1) = 526.9879811554467
p2 = (579.44 * 4.60 * 0.86 + 677.97 * 3.25 * 1 + 826.09 * 2.10 * 0.71 + 962.96 * 2.30 * 0.43) / max_coefficients = 439.44575867557097
score = 526.9879811554467 * 0.5 + 439.44575867557097 * 0.5 = 483.2168699155088
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-06-09 | 77 -> 76 | 483.22 | |
| 2025-05-30 | 74 -> 77 | 494.22 -> 483.22 |
Seihoku spring tournament 2024: 86% -> 71% |
| 2025-05-12 | 70 -> 74 | 497.72 -> 494.22 |
X Russian Championship: 100% -> 86% |
| 2025-05-10 | 73 -> 70 | 495.12 -> 497.72 |
Agari Spring Tournament 2024: 86% -> 71% |
| 2025-05-05 | 69 -> 73 | 509.25 -> 495.12 |
Finding Dora: 57% -> 43% |
| 2025-05-03 | 68 -> 69 | 503.44 -> 509.25 |
SPB Riichi Open 2023: 43% -> 29% |
| 2025-04-26 | 62 -> 68 | 524.72 -> 503.44 |
Seihoku spring tournament 2025: 0% -> 100% |
| 2025-04-22 | 63 -> 62 | 524.72 | |
| 2025-04-13 | 62 -> 63 | 524.72 | |
| 2025-04-11 | 62 | 521.63 -> 524.72 |
Money can not buy tenpai: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 171 |
|
30/36 | 100% | 1.90 | RR | Seihoku spring tournament 2025 | Saint Petersburg | |
| 2 | 678 |
|
20/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 3 | 579 |
|
46/108 | 86% | 4.60 | RR | X Russian Championship | Perm | |
| 4 | 826 |
|
9/47 | 71% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 5 | 333 |
|
35/52 | 71% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 6 | 963 |
|
🥈 | 2/28 | 43% | 2.30 | CRR | Finding Dora | Yekaterinburg |
| 7 | 178 |
|
89/108 | 29% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 8 | 379 |
|
55/88 | 14% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 9 | 645 |
|
12/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 10 | 872 |
|
6/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 11 | 947 |
|
🥈 | 2/20 | 0% | 1.30 | CRR | Mahjong tournament at the Intellectual Games Festival 2019 | Samara |
| 12 | 400 |
|
10/16 | 0% | 1.20 | CRR | Tournament | Samara |